Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> wrote: > Observed PCIE device wake up failed after ~120 iterations of > soft-reboot test. The error message is > "ath10k_pci 0000:01:00.0: failed to wake up device : -110" > > The call trace as below: > ath10k_pci_probe -> ath10k_pci_force_wake -> ath10k_pci_wake_wait -> > ath10k_pci_is_awake > > Once trigger the device to wake up, we will continuously check the RTC > state until it returns RTC_STATE_V_ON or timeout. > > But for QCA99x0 chips, we use wrong value for RTC_STATE_V_ON. > Occasionally, we get 0x7 on the fist read, we thought as a failure > case, but actually is the right value, also verified with the spec. > So fix the issue by changing RTC_STATE_V_ON from 0x5 to 0x7, passed > ~2000 iterations. > > Tested HW: QCA9984 > > Signed-off-by: Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 011d4111c8c6 ath10k: fix PCIE device wake up failed -- https://patchwork.kernel.org/patch/10968039/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
